Uninterrupted supply of web material



July 13, 1965 e. NETZE 3,194,508

UNINTERRUPTED SUPPLY OF WEB MATERIAL Filed July 6, 1962 3 Sheets-Sheet 1 1 THiiiiiiiiiiiilllllllllm -=||1H:fT

27 gi n July 13, 1965 G. NETZE 3,194,5 8

UNINTERRUPTED SUPPLY OF WEB MATERIAL Filed July 6, 1962 3 Sheets-Sheet 2 mmnu mmm umnmmmmmum mmmmmmlmm mmmrmmlm mmmmnmmmmuummlmnmmm ,3

Jn renter:

GUNTHE R. NE 775 July 13, 965 s. NETZE 3,194,508

UNINTERRUPTED SUPPLY OF WEB MATERIAL Filed July 6, 1962 3 Sheets-Sheet 3 INVENTOR cum-m5; NE TZE that the rolls are not interchangeable.

United States Patent 8 Claims. oi. 242 ss.s

This invention relates to the supply of web material. More particularly, it relates to the uninterrupted supplying of web materials from rolls thereof.

It is known to provide an uninterrupted supply of web material from rolls of the material. In the known procedure, a first roll station and a second roll station is provided, and a roll of the web material is mounted for withdrawal at each roll station. The web material is first withdrawn from one station, and upon exhaustion of the supply of web material from this station, the source of supply is transferred to the other station, and so on back and forth to provide the uninterrupted supply. Means are provided for joining the trailing end of the web material of one roll with the leading end of the next roll. For the joining together of the web material, the leading end of the roller material to be picked up is provided with an adhesive, this roll is rotated, and mechanical means, herein referred to as a presser means, presses the trailing end of material from the other roll into joining engagement with the adhesive on the leading end of the roll of material to be picked up. As these known machines are constructed, substantial duplication of equipment is required at each roll station. Moreover, two presser means are required, one for operation in one direction of joining and the other for operation when joining in the other direction, i.e., considering one station as Station 1 and the other station as Station 2, one presser means operates when joining material from Station 1 to material at Station 2, and

another presser means is required for joining the materialfrom Station 2 to material from Station 1. Moreover, the roll at one station rotates in a direction opposite to rotation of the roll at the other station. It results from this The substantial duplication of equipment and the characteristic that the rolls rotate in opposite directions are marked disadvantages of the prior art procedure.

It is a principal object of the instant invention to provide for the uninterrupted supply of web material from rolls thereof in a manner such that the aforementioned disadvantages of the known procedure are avoided. Other objects will appear from the following description, the claims, and the accompanying drawing.

In the drawings:

FIG. 1 is an elevation view, partially in section, of a device according to the invention;

FIG. 2 is a plane view of the device shown in FIG. 1;

FIG. 3 is a view of a breaking station shown in FIG. 2, said view being from the direction indicated by the arrow 111;

FIG. 4 is a plane view of a modified form of equipment according to the invention, and

FIG. 5 is a schematic representation showing a control system for the machine shown in FIGS. 1-3.

In the various views of the drawings, like reference characters refer to corresponding parts.

For a general understanding of the procedure of the invention, reference is made to FIG. 1. As here indicated, a Station is provided for one roll and a Station 23 is provided for a second roll. A roll of material 4 is mounted at Station 15, and web material 42 is withdrawn from mild, passes over roll 49, on to roll 37, and thence in the direction indicated by arrow 43. As the supply of web material from roll 4 approaches exhaustion, the roll 5 mounted at Station 23 is rotated in the same direction as the roll 4 rotates. Further, adhesive is provided at the periphery of roll 5 in the area indicated by the numeral 49. Then, when it is desired to transfer the source of supply of web material from roll 4 to roll 5, the lever arm 39 is actuated to press the presser roll 49 against the web 42 issuing from roll 4, whereupon the web 42 is pressed into engaging relation with the adhesive area-at the pe riphery of roll 5. Thus, the source of supply of web material is transferred to roll 5. Withdrawal of web material from roll 5 can continue while the roll 5 is maintained at Station 23. Before, however, the web material at roll 5 is substantially exhausted, and while rotation of roll 5 is continued, the roll 5 is transferred by means described hereinafter to Station 15. Then, a new roll of material can be provided at Station 23, and transfer of source of supply from Station 15 to the new roll at Station ZS'can be effected as described previously. Thus, an uninterrupted supply of web material can be provided, the rolls rotate in the same direction, and substantial duplication of equipment is avoided.

Thus, the invention provides a method of supplying web material from rolls thereof without interruption of supply of the web material from the rolls. The method comprises rotating a first roll of web material while withdrawing web material therefrom as the supply of web material. For transferring the supply of web material to a second roll, the second roll, is positioned with its axis parallel to the axis of the first roll, the second roll is rotated in the direction of rotation of the first roll, and as the web material withdrawn from the first roll is guided over the course of withdrawal, the web material is moved into engaging relation with the second roll for transferring the web supply source to the second roll. The rotation of the first roll can be about a fixed axis, and following transfer of the web supply source to the second roll, the second roll can be moved to said fixed axis.

The device or machine of the invention for uninterrupted supply of a web from rolls of web material as web supply sources comprises a pair of stationary journal blocks for the journaling of a first roll for rotation thereof for withdrawal of web material from said first roll so that the first roll serves as the web supply source. Further, the machine includes a pair of movable journal blocks for journaling of a second roll on an axis parallel to the axis of the first roll. The movable journal blocks are movable between a first position wherein the second roll is disposed for transfer of the web supply source to the second roll, and a second position wherein the second roll is dis posed for transfer thereof to the stationary journal blocks. Means are provided for rotating the second roll in the direction of rotation of the first roll. Further, means are provided which define a web course for travel of the web material withdrawn from the rolls, and presser means are disposed along said web course for actuation to press the web into engaging relation with the second roll while the second roll is in said first position, all for transferring the webs supply source to the second roll. Means are provided for advancing the second roll-from the said first position to said second position, and means are provided for transferring the second roll to operative mounting in said stationary journal blocks.

Referring to FIGS. 1-3, the machine there shown provides a first roll Station 15 and a second roll Station 23. At roll Station 15, there is provided a pair of stationary journal blocks 15a and a roll 4 of Web material is mounted in these journal blocks. 'Web material 42 is drawn from the roll 4, passes over presser roller 40 onto return roller 37, and thence fromthe machine in the direction .indicated by the arrow 43. At the Station 23, there is provided a pair of movable journal blocks 23a, and a' second roll of web material is mounted in these blocks.

According to the invention, means are provided for rotating roll 5 in the direction of rotation of roll 4. The means includes motor generator 47 which is connected through gearing 48 to a Garden shaft 8. The Garden shaft 8 connects the motor-generator with the main drive 7 shaft '7. Disposed on the drive shaft 7 is a coupling half 31 which is connected to fork connector 33. The roll 5 includes a spool 1t), and mounting on the spool 1t? adjacent the drive shaft 7 is coupling half 12, the coupling half 12 being provided for cooperation with the drive shaft coupling half 31. By operation of the fork connector 32, the coupling half 31 can be brought into operative engagement with coupling half 12, and thereby the spool of roll 5 can be placed in relation to the motor generator 47 so as to be driven by the said motor generator.

For transferring the source of supply of web material from roll 4 to roll 5, in a preferred embodiment of the invention, the roll 5 is rotated so that the speed of its outer periphery is equal to the speed of the material passing along the web course 42, that is equal to the speed of the web material being withdrawn from the roll 4. This is to the end that at the moment of transfer of the source of supply from roll 4 to roll 5, no change in speed of the Web material over the web course will occur. The desired speed of the periphery of the roll'5 is obtained by use of control means (not shown).

After the roll 5 has been brought to the peripheral speed equal to the speed of the web 42 issuing from roll 4, and at a time when the supply of web material from roll 4 is substantially exhausted, it is desired to transfer the source of supply from roll 4 to roll 5. According to the invention, this is done by providing an adhesive along the periphery of roll 5, at, for example, the area indi-' cated by the numeral 49. Then, to effect the transfer, the presser roller 40 is actuated so that the web 42 is pressed into engagement with the roll 5 and therefore with the adhesive in area 49. This effects a joining engagement of the web material from roll 4 and the web material of roll '5, thereafter, the supply source of web material is roll 5.

For effecting the transfer of supply source, particular operating conditions are desired. Thus, it is desirable that the distance a (see FIG. 1) between the periphery of .roll 5 and the web material passing over presser roll 40 be a predetermined amount and that this distance be the same for each transfer of supply source effected with the machine. This will provide for uniform and consistent operation of the changeover steps. As noted here before, the journal blocks at Station 23 are movable. The blocks are mounted in a manner for movement as is shortly described. For effecting movement of roll 5.

to provide the desired distance a, there is provided an adjusting spindle 44. This spindle can be operated manually to provide the desired space. The spindle 44 is threaded into fixed sleeve 44a, and the working end of the spindle presses against the movable journal blocks, whereby the blocks can be moved to provide the desired spacing a.

Further, it is desirable that the web, issuing from roll 4 and pressed into engagement with roll 5, contact the outer periphery of roll 5 at the time or at about the time that the adhesive area 49 approaches the presser roll 40.

Further, it is desired that the line of contact of the'web 42 issuing from roll 4, and the periphery of roll 5 be at or about at the adhesive area 49 along the periphery of the roll 5. To this end, means are provided for sensing an angular position of the adhesive area 49 and for actuating the presser roll 40 in accordance with the angular position of the adhesivearea and to provide the desired contact. Before placing the roll 5 in driving engagement with the motor-generator 47, the roll 5 is rotated by hand to provide the adhesive area 49 in a selected location.

, transfer will be describedshortly.

4%. e The drive means in the form of motor-generator unit 47 can then be inter-connected with the roll 5, and the. roll 5 can be brought to the rotation rate of the roll 4. Connected to the drive shaft 7 via .chain 46 is an angle of rotation scanner This device is known, and tracks notation of roll 5 so as to sense the peripheral position a of the adhesive area 49. When the web material being withdrawn from roll .4 approaches, exhaustion, as may be determined by sensing the diameter of roll 4, control means (not shown) responsive .to the condition of substantial exhaustion of web from roll '4, operate to permit actuation of the presser roll 40, depending upon the position of the adhesive area 49 on roll 5. Following operation of such control means,the angle of rotation scanner 45 operates to trigger'the presser roll 4t at the appropriate time to effect the transfer of supply source as desired. A triggering means (not shown) is operatively connected to the angle of rotation scanner, and further is operatively connected with the said control means to provide operation as described. A

Following transfer of the supply source to roll 5, web material can be withdrawn from roll 5 while said roll is journaled in the movable journal blocks at the station 23, until the diameter of the roll approaches the diameter at which it is appropriate to again switch the source of supply to another roll. At this time, or, if desired, be fore, the roll 5 is transferred to the Station 15 and to a mounting in the stationary journal blocks 15a. This During the time that the web material is withdrawn from a roll at Station 23, such as roll 5 in the drawing, a breaking action to main tain back tension on the roll is provided by operation of the motor-generator 47. During such operation, the said motor-generator unit operates as a generator.

For the transfer of a roll, such as roll 5,to the stationary journal bearings, tracks are provided for travel thereover of the movable stationary box 23 and the drive shaft 7. The tracks include tracks 2 and 3 for the movable journal blocks 23a, and track 6 for movement thereover ofanassembly including the drive shaft '7. The

. tracks are mounted atop frame members 2, 3, and 6, and

together with the frame members provide the assembly indicated by the reference numeral 1. Cylinders 2S are operatively joined to the members to be moved on the various tracks, and means (not shown) for synchronizing an operation of the cylinders 28 so that the members advanced over the tracks are maintained in aligned relationship, and so that the roll 5 is maintained parallel with the axis of the stationary journal bearings 15a. On the track 6,'whereon the driveshaft 7 is mounted, there is provided a car 29 which has journals 30 for the shaft '7, and also carries the angle of rotation scanner 45.

The stationary journal blocks 15a, the movable journal :blocks 23a, and the spool 10 of the rolls 4 and 5 and of gagement therewith, and for releasing a spool seated in the journal block from seated engagement therein.

As shown in the drawings, the movable journal blocks 23a include half-bowl 24 and restraining and releasing pin 21. The half-bowl is mounted on wheels 25 for movement over the .trackway 27.1 The pin 21 is operatively connected to the servo mechanism 26, and is arranged to be raised'and lowered in response to operation of the servo mechanism 2t): The servo mechanism 2t} is mounted on a bracketZtia which, in turn, is mounted on the journal block 24, so that t-heservo mechanism is moved with the journal. block. The stationary journal blocks 15a are of the same construction as the movable journal blocks. Thus, the stationary journal blocks 15a comprise a half-bowl .17, restraining and releasing pins 21', servo mechanism 21", and bracket 16. The halfbowls of the various journal blocks are arranged so that the open sides of the half-bowls of the stationary journal blocks face the open sides of the half bowls of the stationary journal blocks and so that the open sides face the open sides of the half-bowls of the movable journal blocks.

Regarding construction of the spools 16 on which the rolls, such as roll 5, are mounted, reference is made to FIG. 2. As there shown, the spools comprise at one end thereof, the coupling half 12), and further comprise four bearings. These bearings are inner bearings 11 and outer bearings 19. The respective pairs of journal blocks are offset with respect to the axial direction of the rolls, so that the inner bearings 11 are received in the movable journal blocks 23a, whereas the outer bearings 19 are received in the stationary journal blocks 15a.

The just-described construction of the spools 10 in combination with the offset arrangement of stationary journal biocks with respect to the movable journal blocks, makes it possible to simultaneously seat the roll spools 10 in movable journal blocks and in the stationary journal blocks in the course of transferring a roll from Station 23 to Station 15. To effect the transfer of a roll, the cylinders 28 are actuated to advance the movable journal blocks toward the stationary journal blocks, as well as to advance the drive shaft in the same way. The roll 4, having been exhausted of web material, is manually removed from the stationary journal blocks 15a so that these blocks are in condition to receive the roll 5. As the roll 5 is advanced to the stationary journal blocks 15a, the pins 21 of the stationary journal :blocks 15:: can be withdrawn leaving the bowl halves open to entrance by the outer bearings 19 on the spool 16 of roll 5. The outer bearings 19 can thus be brought into seated engagement in the stationary journal blocks 15a. Then, the pins 21 of the stationary journal block can be moved upwardly from their withdrawn position and to a position as is shown in FIG. 1 wherein they retain the bearings 19 in the journal blocks 15a. At this point, the inner bearings 11 of the spool v10 are still seated in the stationary journal blocks 15a and are retained in this seated condition by pins 21. Thus, the arrangement permits a simultaneous seating of the spool in the stationary journal blocks and the movable journal blocks. To withdraw the movable journal blocks from engagement with the spool 10, the pins 21 can be withdrawn by operation of the servo mechanism 20, and the cylinders 28 can then be operated to Withdraw the movable journal blocks from seated engagement with the inner bearings 11. The movable journal blocks can then be returned to station 23 and, upon actuating the pin 21 to elevate it from its withdrawn condition, are then ready to receive a further roll of web material.

Throughout the transfer of a roll from Station 23 to Station 15, web material is withdrawn from the roll being transferred, and further, following the transfer to Station 15, web material is withdrawn from the roll until such time as the source of supply of web material is transferred to another roll now mounted at Station 23.

Throughout withdrawal of web material from a roll, back tension is maintained on the roll. While the web material is being withdrawn from a roll mounted at Station 23, the back tension is maintained by a breaking generator action of the motor-generator unit 47, which action automatically takes over from the motor action of said motor-generator unit utilized to bring the roll 5 up tov a desired peripheral speed for transfer of the supply source to roll 5 in Station 23, as has been described in more detail hereinbefore. At Station 15, a pair of brake shoes 33 are provided, and the outer surface of a coupling half 12 mounted on the end of spool it has been developed as a brake drum. Details of the breaking unit at Station 15 are shown in FIG. 3. The brake shoes 33 are mounted on lever arms 33a which are pivotally mounted on pins 35. The pins 35 are fixedly connected to a machine frame 1. A servo mechanism 34 interconnects the ends of lever arms 33a opposite the brake shoes 33. By operation of the servo mechanism 34, the brake shoes 33 can be'removed from engagement, or placed into engagement, with the braking surface of the coupling half 12.

In making the transfer of a roll from Station 23 to Station 15, with the Station 15 free to receive a roll from Station 23, the servo unit 34- is operated to provide the brake shoes in open condition and so that they are free to receive the coupling half 12 of the spool of the roll being transferred. Upon the positioning of the new roll at Station 15, the servo mechanism 34- is actuated to cause the brake shoes 33 to engage the braking surface of the coupling half 12. Throughout such operation, the drive shaft '7 is maintained in engagement with the coupling half 12 so that braking action is provided by the motorgenerator unit 47. Following the engagement of the brake shoes 33 with the half-coupling 12, the drive shaft 7 is disengaged from the coupling half 12. This disengagement can be carried out in a manner similar to the procedure followed in eifecting engagement of the drive shaft with the coupling half 12. Thus, disengagement is effected by operation of the fork connector 32.

Returning now to'the operation of the presser roll 40, the presser roll 44 is mounted on one end of swinging angle levers 39. The swinging arms 39 have the apeX thereof pivotally mounted at pillow blocks 38 which serve as well as the journa-ling means for the return roller 37. Operatively connected to the ends 40a of the swinging arms 39 are servo units 41. The servo units 41 are provided to actuate the swinging arms so as to press the presser roll 40 into engaging contact with roll 5 when it is desired to transfer the source of supply to roll 5. Controls means (not shown) responsive to the sequential operation of a sensing element such as a diameter gauge for sensing the substantial exhaustion of web material from roll a, and a second sensing element for cooperation with the angle of rotation scanner 45 to sense the position of the adhesive area 49 on the roll 5 are provided. Thus, when the web material has been substantially exhausted from roll 4, and, thereafter, the adhesive area'49 is in proper peripheral position, the servo mechanism 41 operates to press the presser roller 4i toward the roll 5 to'effect engagement of the web traveling over course 42 and the web material of the roll 5. Following such engagement, the servo cylinder 41 can operate, in response, for example, to spring action, to withdraw the presser roll 40 from engagement with the roll 5 and to return the roll 46 to the position shown in FIG. 1. Desirably, means 59a are provided to cut web material withdrawn from roll 4 following the transfer of the source of supply to roll 5. The means 50a, shown schematically in FIG. 1, include the servo unit 50, the lever arm 500, the pivot mounting for the lever arm in the form of pivot block Stla, and a cutter 51. Upon actuation of the servo mechanism 5% the cutter 51 moves upwardly and cuts the web withdrawn from roll 4 following the transfer of source of supply as aforesaid.

A feature of the machine of the invention is that the web 42 withdrawn from the roll 4 at Station 15 travels in a direction opposite to the direction in which the roll Sis moved to transfer the roll 5 from the movable journal blocks to the stationary journal blocks. This arrangement can be seen in FIG. 1, wherein the cut-out 36 is provided in the machine frame 1, and the web 42 can be seen as traveling as aforesaid.

In FIG. 5, a control system for the machine shown in FIGS. 1 and 2 is indicated schematically. In FIG. 5, portions of the equipment shown in FIGS. 1 and 2 are reproduced. A diameter sensing instrument 7 i1 is mounted for sensing the diameter of the roll 4 at Station 15. The instrument 7% includes a lever arm '73 having a roller '72 mounted on one end thereof for contacting the roll 4, and

valves 76at the proper time, i.e. when the adhesive'area- 49 (PI-G. 1) on the periphery of the roll 5 is in the appropriate position for the transfer of web supply source.

Upon the'solenoid 76 being energized, valve 81 is opened and valve 82 is closed, whereby the cylinder of servo mechanism 41 is communicated with a source of hydraulic fluid under pressure. This moves the piston rod '77!) of the servo mechanism 41 inwardly; the end 77 of the piston rod is fixedly secured to the swinging arms 39 on which the presser roller itl is mounted, and this action of the servo mechanism 41 .actuates the presser roller 4a to press the roller .so that the web being withdrawn from Station is pressed into contact with roll 5. From the solenoid valve 76, the power leads pass through a normally closed switch 79 and onto switching device 8%. Switching device 8% serves to change the operation of a motor generator to a mercury unit 47 of the stationary drive assembly 9 from motor" operation to generator operation, whereby to obtain a breaking action. To effect disengagement of the presser roll 49 with the roll 5, a pressure switch '79 is connected to the hydraulic lines serving the servo mechanism 41 and upon rise in pressure in the servo mechanism unit to a predetermined amount, the pressure switch 79 opens the circuit whereby the solenoid valves are deenergized. Valve 81 then closes whereas valve 32 opens. This permits the spring 78 mounted in the cylinder of the servo mechanism 41 to press the piston rod 77b outwardly. The end of the piston rod 77, which is fixedly secured to the swinging arms 39, then works on the swinging arms 59 to remove the presser roller ill from engagement with the roll 5.

The machine of the invention is particularly useful for supplying an endless web of paper, and is adapted for working with rolls of substantial length, for example rolls of substantially greater length than diameter. Where the paper is of limited strength so that accurate control of back tension is a matter of importance, the arrangement shown in FIG. 4 can be used. The machine shown in FIG. 4 differs from the machine described above-in that a break generator is used at Station 15,'in place of the brake shoes 33 used in the embodiment of FIGS. 1 and 2. To this end, the outwardly disposed end of the spool ill of each roll, instead of ending in a free stud 14 as shown in FIG. 2, is provided with a half coupling 13, and

is coupled, when at Station 15, to break-generator 53.

through drive belt 55 and clutch arrangement 54. The

- clutch arrangement is controlled by air pressure supplied from compressed air line 51. In the operation of the machine as shown in FIG. 4, while the roll 4 at Station 15 is still engaged with the motor-generator unit 4-7, the break'generator unit 53 is synchronized by means (not shown) with the roll 4 so that the coupling half 52 is turning at the same rpm. as the roll 4. The coupling half 52 is then engaged with the coupling half 13. Thereafter, the roll 4 is disengaged from connection with motor-generator unit 47. A machine, as shown in FIG. 4, permits particularly smooth change-over of back tension when the motor-generator unit 47 is relieved from this service In making the change-over, it is desirable to maintain the roll 4 in engaged position with the motor-generator unit 47 and the break-generator unit 53 for a short time before the motor-generator unit 47 is disengaged.

I claim:

1. Machine for uninterrupted supply of a web from rolls of the web material as web supply sources comprising a pair of stationary journal blocks for the journaling of a first roll for rotation thereof for withdrawal of web material from said first roll so that the first roll serves as the web supply source, a first roll of web material mounted in said stationary journal blocks, a pairofjmovable journal bloclgs for journaling of a second roll on an axisparallel to the axis of the first roll, a second roll of web material mounted in said movable journal blocks, said movable journal blocks being movable between a first position wherein the second roll is disposed for transfer of the web supply source to the second roll, and a second position wherein the second roll is disposed for transfer to the stationary journal blocks, means for rotating the second roll in the direction of rotation of the first roll, means defining a web course for travel of the web from the rolls, presser means disposed along said web course for actuation to press the web into engaging relation with the second roll with the second roll in said first position and for transferrin g the web supply source to the second roll, means for advancing the second roll from'said first position to said second position, and means for transferring the second roll to operative mounting in said stationary journal blocks, said second roll including a spool, an end portion of the spool projecting from each end thereof axially outwardly of the second roll and having mounted thereon an inner bearing and an outer bearing providing a pair of inner bearings disposed one on each side of the second roll and a pair of outerbearings disposed one .on each side of the second roll, the bearings of one of said pairs being disposed for receipt by the movable journal blocks, and the bearings of said other pair of bearings being disposed for receipt by the stationary'journal block's, one of said pairs of journal blocks being disposed inwardly of the other pair of journal blocks, whereby the spool of the second roll is provided with bearings arranged for simultaneousengagement by the movable journal blocks and the stationary journal blocks. i

2. A machine according to claim 1, wherein each of the stationary journal blocks and each of the movable journal blocks comprises a half-bowl for the seating therein of a spool bearing, the opensides of the movable journal block half-bowls facing the open sides of the stationary journal block half-bowls, each of said half-bowls being provided with retaining and releasing means for, respectively, retaining a bearing seated therein in seated engagement and releasing a bearingseated therein from seated engagement.

3. Machine for uninterrupted supply of a web from rolls of the web material as web supply sources comprising a pair of stationary journal blocks for the journaling of a .first roll for rotation thereof for withdrawal of web mateond roll, and a second position wherein the second roll is disposed for transfer to the stationary journal blocks, meansfor rotating the second roll in the direction of rotation of the first roll, means defining a web course for travel of the web from the rolls, presser means disposed along said web course for actuation to press the web into engaging relation with the second roll with the second roll in said first position and for transferring the web supply source to the second roll, means for advancing the second roll from said first position to .said'second position, and means for transferring the second roll to operative mounting in said stationary; journal blocks, said means for rotating the second roll in the direction of rotation of the first roll comprising a drive shaft for imparting rotation to said second roll, and means for moving said drive shaft in a manner corresponding with movement of said second roll from said first position to said second position, motorgenerator means operatively connected to said drive shaft for, respectively, driving said shaft and, by generator action, breaking said shaft following said transfer of the mounted on the other end thereof a coupling-half for op-L;

'erative engagement with a break-generator means.

10 defining a web course for travel of the web from the rolls, presser means disposed along said web course for actua tion to press the web into engaging relation with the second roll with the second roll in said first position and for transferring the web supply source to the second roll, means for advancing the second roll from said first position to said second position, and means for transferring the second roll to operative mounting in said stationary journal blocks, said second roll including a spool, an end portion of the spool projecting from each end thereof axially outwardly of the second roll and having mounted a a o. A machine according to claim 5 and in combinatlon therewith a break-generator means for operative engagement with the second-mentioned coupling-half following transfer of said second roll to said stationary journal block.

7. A machine according to claim 3, and including an angle of rotation scanner operatively connected ,to said drive shaft for facilitating transfer of the web supply source from said first roll of Web material to said second roll of web material.

8. Machine for uninterrupted supply of a web from rolls of the web material as web supply sources comprising a pair of stationary journal blocks for the journaling of a first roll for rotation thereof for withdrawal of web material from said first roll so that the first roll serves as the web supply source, a first roll of Web material mounted in said stationary journal blocks, a pair of movable journal blocks for journaling of a second roll on an axis parallel to the axis of the first roll, a second roll of web material mounted in said movable journal blocks, said movable journal blocks being movable between a first position wherein the second roll is disposed for transfer of the web supply source to the second roll, and a second position wherein the second roll is disposed for transfer to the stationary journal blocks, means for rotating the second roll in the direction of rotation of the first roll, means thereon an inner bearing element, and an outer bearing 1 element providing a pair of inner bearing elements disposed one on each side of the second roll and a pair of outer bearing elements disposed one on each side of the second roll, the movable journal blocks being disposed for receipt of one of the bearing elements on each side of the second roll, the stationary journal blocks being offset from the movable journal blocks and being disposed for receipt of the remaining bearing element on each side of the second roll, whereby the spool of the second roll is provided with bearings arranged for simultaneous engagement by the movable journal blocks and the stationary journal blocks.

References Qited by the Examiner UNITED STATES PATENTS 1,409,659 3/ 22 Brewer 242-5 8.2 1,659,276 2/28 Maston 242--58.6 1,677,561 7/28 Lamatch 242-58.6 2,384,983 9/45 Weiss 24256.l 2,596,189 3/52 Wieking 242-582 2,617,605 11/52 Weiss 24256.1 2,998,205 8/61 Francik 242-58.3 3,065,923 11/62 Karr 242-583 MERVIN STEIN, Primary Examiner.

LEYLAND M. MARTIN, Examiner. 

1. MACHINE FOR UNINTERRUPTED SUPPLY OF A WEB FROM ROLLS OF THE WEB MATERIAL AS WEB SUPPLY SOURCES COMPRISING A PAIR OF STATIONARY JOURNAL BLOCKS FOR THE JOURNALING OF A FIRST ROLL FOR ROTATION THEREOF FOR WITHDRAWAL OF WEB MATERIAL FROM SAID FIRST ROLL SO THAT THE FIRST ROLL SERVES AS THE WEB SUPPLY SOURCE, A FIRST ROLL OF WEB MATERIAL MOUNTED IN SAID STATIONARY JOURNAL BLOCKS, A PAIR OF MOVABLE JOURNAL BLOCKS FOR JOURNALING OF A SECOND ROLL ON AN AXIS PARALLEL TO THE AXIS OF THE FIRST ROLL, A SECOND ROLL OF WEB MATERIAL MOUNTED IN SAID MOVABLE JOURNAL BLOCKS SAID MOVABLE JOURNAL BLOCKS BEING MOVABLE BETWEEN A FIRST POSITION WHEREIN THE SECOND ROLL IS DISPOSED FOR TRANSFER OF THE WEB SUPPLY SOURCE TO THE SECOND ROLL, AND A SECOND POSITION WHEREIN THE SECOND ROLL IS DISPOSED FOR TRANSFER TO THE STATIONARY JOURNAL BLOCKS, MEANS FOR ROTATING THE SECOND ROLL IN THE DIRECTION OF ROTATION OF THE FIRST ROLL, MEANS DEFINING A WEB COURSE FOR TRAVEL OF THE WEB FROM THE ROLLS, PRESSER MEANS DISPOSED ALONG SAID WEB COURSE FOR ACTUATION TO PRESS THE WEB INTO ENGAGING RELATION WITH THE SECOND ROLL WITH THE SECOND ROLL IN SAID FIRST POSITION AND FOR TRANSFERRING THE WEB SUPPLY SOURCE TO THE SECOND ROLL, MEANS FOR ADVANCING THE SECOND ROLL FROM SAID FIRST POSITION TO SAID SECOND POSITION, AND MEANS FOR TRANSFERRING THE SECOND ROLL TO OPERATIVE MOUNTING IN SAID STATIONARY JOURNAL BLOCKS, SAID SECOND ROLL INCLUDING A SPOOL, AN END PORTION OF THE SPOOL PROJECTING FROM EACH END THEREOF AXIALLY OUTWARDLY OF THE SECOND ROLL AND HAVING MOUNTED THEREON AN INNER BEARING AND AN OUTER BEARING PROVIDING A PAIR OF INNER BEARINGS DISPOSED ONE ON EACH SIDE OF THE SECOND ROLL AND A PAIR OF OUTER BEARINGS DISPOSED ONE ON EACH SIDE OF THE SECOND ROLL, THE BEARINGS OF ONE OFSAID PAIRS BEING DISPOSED FOR RECEIPT BY THE MOVABLE JOURNAL BLOCKS, AND THE BEARINGS OF SAID OTHER PAIR OF BEARINGS BEING DISPOSED FOR RECEIPT BY THE STATIONARY JOURNAL BLOCKS, ONE OF SAID PAIRS OF JOURNAL BLOCKS BEING DISPOSED INWARDLY OF THE OTHER PAIR OF JOURNAL BLOCKS BEING DISPOSED INWARDLY OF THE OTHER PAIR PROVIDED WITH BEARINGS ARRANGED FOR SIMULTANEOUS ENGAGEMENT BY THE MOVABE JOURNAL BLOCKS AND THE STATIONARY JOURNAL BLOCKS. 